Android学习笔记之百度地图(POI搜索之周边检索poiSearchNearBy)

分享一下我老师大神的人工智能教程!零基础,通俗易懂!http://blog.csdn.net/jiangjunshow

也欢迎大家转载本篇文章。分享知识,造福人民,实现我们中华民族伟大复兴!

               


POI搜索有三种方式,根据范围和检索词发起范围检索poiSearchInbounds,城市poi检索poiSearchInCity,周边检索poiSearchNearBy。

下以周边检索为例介绍如何进行检索并显示覆盖物PoiOverlay:

public int poiSearchNearBy(java.lang.String key, GeoPoint pt, int radius)

根据中心点、半径与检索词发起周边检索. 

异步函数,返回结果在MKSearchListener里的onGetPoiResult方法通知
参数:
key - 关键词
pt - 中心点地理坐标
radius - 半径,单位:米
返回:
成功返回0,否则返回-1
Demo: 检索天安门周边5000米之内的KFC餐厅

mMKSearch.poiSearchNearBy("KFC", new GeoPoint((int) (39.915 * 1E6), (int) (116.404 * 1E6)), 5000);




实现MySearchListener的onGetPoiResult,并展示检索结果:
public void onGetPoiResult(MKPoiResult result, int type, int iError) {    if (result == null) {        return;    }    PoiOverlay poioverlay = new PoiOverlay(MyMapActivity.this, mMapView);    poioverlay.setData(result.getAllPoi());    mMapView.getOverlays().add(poioverlay);}




具体实现:
package xiaosi.baiduMap;import android.os.Bundle;import com.baidu.mapapi.BMapManager;import com.baidu.mapapi.GeoPoint;import com.baidu.mapapi.MKAddrInfo;import com.baidu.mapapi.MKDrivingRouteResult;import com.baidu.mapapi.MKPoiResult;import com.baidu.mapapi.MKSearch;import com.baidu.mapapi.MKSearchListener;import com.baidu.mapapi.MKTransitRouteResult;import com.baidu.mapapi.MKWalkingRouteResult;import com.baidu.mapapi.MapActivity;import com.baidu.mapapi.MapController;import com.baidu.mapapi.MapView;import com.baidu.mapapi.PoiOverlay;public class BaiduMapActivity extends MapActivity/** Called when the activity is first created. */ private BMapManager mapManager = nullprivate String key = "1B79478DA01F7800AEA8602517A6D89B38151105"private MapView mapView = null@Override public void onCreate(Bundle savedInstanceState) {  super.onCreate(savedInstanceState);  setContentView(R.layout.main);  mapManager = new BMapManager(getApplication());  mapManager.init(key, null);  super.initMapActivity(mapManager);  mapView = (MapView) findViewById(R.id.mapsView);  mapView.setBuiltInZoomControls(true); // 设置启用内置的缩放控件  MapController mapController = mapView.getController(); // 得到mMapView的控制权,可以用它控制和驱动平移和缩放  mapController.setZoom(12); // 设置地图zoom级别      MKSearch mKSearch = new MKSearch();  mKSearch.init(mapManager, new MySearchListener());// 注意,MKSearchListener只支持一个,以最后一次设置为准  mKSearch.poiSearchNearBy("KFC", new GeoPoint((int) (39.915 * 1E6),    (int) (116.404 * 1E6)), 5000); } public class MySearchListener implements MKSearchListener {  public void onGetAddrResult(MKAddrInfo arg0, int arg1)  {}  public void onGetDrivingRouteResult(MKDrivingRouteResult arg0, int arg1)  {}  public void onGetPoiResult(MKPoiResult arg0, int arg1, int arg2)  {   if (arg0 == null) {          return;      }      PoiOverlay poioverlay = new PoiOverlay(BaiduMapActivity.this, mapView);      poioverlay.setData(arg0.getAllPoi());      mapView.getOverlays().add(poioverlay);  }  public void onGetTransitRouteResult(MKTransitRouteResult arg0, int arg1)  {}  public void onGetWalkingRouteResult(MKWalkingRouteResult arg0, int arg1)  {} } @Override protected boolean isRouteDisplayed() {  return false; } @Override protected void onDestroy() {  if (mapManager != null)  {   mapManager.destroy();   mapManager = null;  }  super.onDestroy(); } @Override protected void onPause() {  if (mapManager != null)  {   mapManager.stop();  }  super.onPause(); } @Override protected void onResume() {  if (mapManager != null)  {   mapManager.start();  }  super.onResume(); }}






           

给我老师的人工智能教程打call!http://blog.csdn.net/jiangjunshow

这里写图片描述

猜你喜欢

转载自blog.csdn.net/sdfsdfytre/article/details/83934747